Abstract
Electrochemical impedance spectroscopy and other electrochemical methods were used to study the kinetics of hydrogen entry into porous, isotropic graphite and a single crystal graphite surfaces upon cathodic hydrogen charging and to calculate the hydrogen adsorption efficiencies. This model was first applied to graphite in an aqueous, alkaline solution, then in a room-temperature ionic liquid (RTIL), and, ultimately will be applied to FliNaK molten salt systems in future work. The results demonstrate that our model accurately describes the entry of hydrogen into graphite in harsh environments, which are important for the development of molten salt reactors (MSRs).
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